513514243251 has 12 divisors (see below), whose sum is σ = 741761746128. Its totient is φ = 342334082544.

The previous prime is 513514243211. The next prime is 513514243357. The reversal of 513514243251 is 152342415315.

513514243251 is a `hidden beast` number, since 5 + 1 + 35 + 142 + 432 + 51 = 666.

It is not a de Polignac number, because 513514243251 - 2¹⁷ = 513514112179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513514243211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346455 + ... + 1071008.

It is an arithmetic number, because the mean of its divisors is an integer number (61813478844).

Almost surely, 2^513514243251 is an apocalyptic number.

513514243251 is a deficient number, since it is larger than the sum of its proper divisors (228247502877).

513514243251 is a wasteful number, since it uses less digits than its factorization.

513514243251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457722 (or 1457719 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 513514243251 its reverse (152342415315), we get a palindrome (665856658566).

The spelling of 513514243251 in words is "five hundred thirteen billion, five hundred fourteen million, two hundred forty-three thousand, two hundred fifty-one".